https://rennlist.com/forums/racing-a...strol-srf.html
Here is the range of debate in this thread. Wet boiling point is key especially if use is in wet or high humidity conditions. My understanding is that fluid absorbs a lot more moisture as it heat cycles in wet conditions as in racing (vs just sitting at constant temp open bottle on a shelf). My application is rally - winter and summer - so I regard it as cheap insurance not expensive fluid.